i.icon{
  display: inline-block;
}
.hk-innerCenter{
  position: relative;top: 50%;
  transform: translateY(-50%);
}
.hk-inline{display: inline-block;}
.fl{float: left;}
.fr{float: right;}
ul{list-style: none;}
input,a,textarea,div{
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);//去除点击出现阴影
  -webkit-appearance:none;//去除输入框上阴影
}
